Floor construction.



H. W. SCHLUETER.

FLOOR CONSTRUCTION.

APPLICATION FILED AuG.3, 1914.

1,177,278. Patented Mar. 28, 1916.

. 2 SHEETS-SHEET 1 H. W. SCHLUETER.

l FLOOR CONSTRUCTION. APPLICATION FILED Aue.3. I9I4.

1,177,278.` l Patented Mar. 28,1916.

2 SHEETS-SHEET 2.

HENRY W. SCHLUETER, 0F OCEANPARK, CALIFORNIA.

FLOOB CONSTRUCTION.

Specification of Letters Patent.

Application led August 3, 1,914. Serial No. 854,873.

To all wkom'z't may concern:

Be itknown that I, HENRY W. Sorinunrnn, a citizen of the United States, residing at Oceanpark, in the county of Los Angeles, State of California, have invented a new and useful Improvement in Floor Construction, of which the following is a specification.

The invention relates to building construction and more .particularly to the construction of concrete buildings, piers, and the like.

The principal object o-f the invention is to provide a. floor construction in whlch a series of primary concrete members may be cast and seasoned at any convenient point at any convenient time, and in which, after the primary members have been placed in thelr final position in the building, secondary locking members may be cast therearound forming a rigid unitary fioor. y

It' is at the present time common practice to build large structures of concrete by employing expensive false work, but my invention has a peculiar utility vand novelty over all such systems in that the primary members are cast before the erection of the building is started or during the erection at some other point, and these primary membersare the forms for secondary locking members which are cast after4 the primary members are set in place. As itis necessaryl for the economical production of any type of building to provide large floor spans b etween the supporting beams, floor members if cast so as to be self-supporting and fill this large area would be extremely cumbersome. I have devised` means whereby such Hoor members may be cast in a plurality of pieces each vconsiderably smaller than the total area between supporting beams and these small primary members may be locked together by secondary keys cast in place after the primary members are erected. For the production of a stro-ng viioor at an economical cost it is highly desirable touse a flat arch and more particularly a groined arch.

A further object of my invention is to produce such a floor which when completed will have the arch form and which will therefore be very economical of material.

Further. objects and advantages will be evident hereinafter.

4Referring to the drawings which are for illustrative purposes only: Figure 1 is a plan of a floor employing my invention in which various layers are shown broken away or shown in section to illustrate the construction used. Fig. `2 is a section on the line :v2-m2 of Fig. 1. `Fig. 3 is a lplan of a portion of a concrete pier employingmy invention, certain members being broken Patented Mar."28, v1916.

awayor sectioned to better illustrate the v construction. Fig. 4 is a section on the line .m4-m4 of.F1g. 3. Fig. 5 1s a section through Va subway showing the roof structure anda portlon of the street thereover.

-It is to be understood that this invention 1s applicable to any place where either a floor or roof is used in building construction whether such constructionhas for its object the production of a building, a pier, a sub-v way, or any similar structure.1

In the construction illustrated in Figs. 1 and 2 which is especially intended to apply to a building, columns 1 support concrete beams 2 and 3 which are suitably 'locked together. Reinforced concrete arch' members 4, 5, 6,l and 7 are cast at any convenient point about suitable reinforcement and after being allowed to properly setare placed on projections 8 on the beams 2 and 3. The primary member 4 is supported on the edges 9 and 10 and is curved upwardly tothe center of the span, an opening being left on each side between the member4 and the members5 and 7. After the floor members 4,5, 6, and 7 are placed, reinforcing rods 12 and 13 are setin the space between the members and light forms are secured beneath this space and against the members 4, 5,. 6, and 7. A lconcrete key 14 is then lcast about the reinforcements 12 and 13 completely filling thespace between the floor members 4, 5, 6, and7. vA body'of filling material 15 is then tamped into place and any suitable floor 16 is placed thereover. "l

. In the embodiment of my invention illustrated in Figs. 3 and 4 a co-ncrete pier is illustrated having-piles 20, upon which are supported a succession of beams 21. vFloor members 22 which are exactly similar to the Hoor members 4, 5, 6, and 7 heretofore described are set in place on these beams and locked together by concrete keys 23, a door 24 being cast over suitable filling material. The beams and floor may be extended lto form cantalivered spaces 2 5 is desired.

In the form of my invention illustrated in Fig. 5, 30 and 31 are subway openings through 4which traiic may pass between form are wholly in compression, exerting a sidethrust against the beams 3 and against the key 14. The arch form, as is well understood,I is well adapted to concrete or masonry construction in which the materials used have little or no tensile strength. By its use in this connection floor members having large spans can be made very light and thin and such members have great'strength due to the material therein being wholly in compression. 1t should be further noted that by the use of a double arch resting at its two outer edges on beams at right angles to each other a vconstruction is produced which is entirely self-supporting without the keys so that .any tying of reinforcement between the floor members` or any false work is unnecessary.

` I claim as my invention:

v1. A floor construction comprising four beams forming a rectangular panel and four arch members resting thereon each arch member being supported on two adjacent edges of said panel, the other edges of the.'

arch members being spaced from adjacent arch members to form a space for a concrete locking key. Y j

2. A loor`constructicn comprising a plurality ot beams forming an open polygonal panel, and a plurality of floor members, each floor member resting on two adjacent beams ot said panel each of said floor members being of substantially the same shape and having a common meeting point at the center of the panel.

3. A floor construction comprisin a plurality of beams forming an open po ygonal panel each beam having a ledge formed thereon said ledges extending around the inner side of said panel, and a plurality of Hoor members, each floor member resting on the ledges of two adjacent'beams of said panel each of said floor members being of substantially the same shape and having a common meeting point at the center of the panel.

4. A 'loor construction comprisingfour beams forming a rectangular panel, four Hoor members resting on said floor beams, each floor member being arched upward from two adjacent lower edges to two adjacent upper edges, the said adjacent lower edges resting on two adjacentedges of said panel and said two adjacent upper edges being separated from similar edges on an adjacent floor member by a locking space, and a locking key cast in said locking space in such a manner as to -lock said four floor members into -a monolithic whole.

5. A floor construction comprising a plurality of beams forming an open polygonal panel, and a plurality of floor members, each licor member resting at its outer edge on two adjacent beams of said panel and being arched upwardly toward a common` lock the floor members into a monolithic whole.

7. A floor construction comprising a plurality-of beams forming an open polygonal panel, each beam having a ledge formed thereon said led es extending around the inner side of sai panel at a distance below the top thereof, and a plurality of floor members each floor member `resting on two of its adjacent outer edges on the ledge on two adjacent beams, each floor member being arched upwardly from said'outer edges to a common central point inside said panel.

8. A floor construction comprising a plurality of beams forming an open polygonal panel, each beam` having a ledge formed thereon said ledges extending around the inner side of said panel at a distance below the top thereof, a plurality of floor mernbers each floor member resting on two of its adjacent outer edges on the ledge on two adjacent beams, each floor member being arched upwardly from said outer` edges to a common central point i side said panel,

said floor members being mutually separated by a locking space, and a locking key cast in said locking spaces inv such a manner as to lock the floor members into a monolithic whole. l

, In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 24th day of Ju1y,"1914.

HENRY w. scHLUETER;

In presence of- FRED A. MANSFIELD, F. W. HARRIS. 

